EP4037940A1 - Dispositif de nettoyage d'un système optique - Google Patents
Dispositif de nettoyage d'un système optiqueInfo
- Publication number
- EP4037940A1 EP4037940A1 EP20767512.5A EP20767512A EP4037940A1 EP 4037940 A1 EP4037940 A1 EP 4037940A1 EP 20767512 A EP20767512 A EP 20767512A EP 4037940 A1 EP4037940 A1 EP 4037940A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switch
- piston
- cleaning
- rod
- cleaning fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 147
- 230000003287 optical effect Effects 0.000 title claims abstract description 46
- 239000012530 fluid Substances 0.000 claims abstract description 69
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 abstract description 4
- 230000003213 activating effect Effects 0.000 description 6
- 230000004913 activation Effects 0.000 description 6
- 230000003993 interaction Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/56—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
- B60S1/48—Liquid supply therefor
- B60S1/52—Arrangement of nozzles; Liquid spreading means
- B60S1/522—Arrangement of nozzles; Liquid spreading means moving liquid spreading means, e.g. arranged in wiper arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
- B60S1/48—Liquid supply therefor
- B60S1/52—Arrangement of nozzles; Liquid spreading means
- B60S1/522—Arrangement of nozzles; Liquid spreading means moving liquid spreading means, e.g. arranged in wiper arms
- B60S1/528—Arrangement of nozzles; Liquid spreading means moving liquid spreading means, e.g. arranged in wiper arms the spreading means being moved between a rest position and a working position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
- B60S1/48—Liquid supply therefor
- B60S1/481—Liquid supply therefor the operation of at least part of the liquid supply being controlled by electric means
Definitions
- the present invention relates to the field of cleaning devices for a vehicle, and more particularly devices for cleaning optical systems placed in a vehicle.
- a cleaning device near optical systems with a jack comprising a rod which emerges from a jack body and which projects a cleaning fluid onto the optical system by means of a control element. projection located at the emerging end of the stem.
- the device is activated, for example, after pressing a button.
- the rod then emerges from the cylinder body and the projection element travels a distance until it is stopped at a maximum position, the cleaning fluid being projected over the entire duration of this operation.
- the jet of cleaning fluid therefore sweeps an area in which the optical surface of the optical system is located and thus proceeds to clean it.
- this cleaning device is programmed to project the cleaning fluid for a certain period of time, the latter being intentionally long to cover different projection situations depending on the speed of movement of the vehicle, for example. .
- a not insignificant amount of cleaning fluid is not sprayed on the optical system and results in wastage of the latter in the long term.
- the present invention proposes to overcome this problem by proposing a device for cleaning at least one optical system of a vehicle, comprising a jack which comprises a jack body which delimits a chamber, a piston capable of moving in the chamber, and a rod connected to the piston, one end of the rod emerging from the cylinder body, said rod comprising at least one element for spraying a cleaning fluid provided at the end of the rod, the rod comprising at least one cleaning fluid circulation channel which connects the chamber to said at least one projection element, characterized in that the cleaning device comprises a switch activated according to the position of the piston.
- the cylinder body is configured to allow the rod to emerge from it.
- the piston is positioned on the end of the rod opposite the end comprising the projection element.
- the piston being linked to the end of the rod, it is therefore the displacement of the piston which causes the rod to emerge from the cylinder body, but also the return of the latter within the cylinder body once cleaning of the optical system carried out.
- the cleaning fluid circulation channel passes through the rod and the piston to open into the chamber. The cleaning fluid circulation channel therefore extends from the chamber to the projection member, the chamber and the projection member being filled with the cleaning fluid when the cleaning device is activated.
- the switch is activated through the piston.
- the switch is therefore arranged so as to be partially located on the piston as well as on an area of the cylinder body located near the passage of the piston.
- the switch is therefore activated according to an interaction between the piston and the cylinder body. In other words, activating the switch determines a precise position of the piston within the cylinder body.
- the switch can be activated for example following an electrical or magnetic interaction. Activation means the implementation of a normally open or normally closed switch, an electrical circuit being adapted to the type of switch used.
- the switch comprises at least two electrical terminals integral with the cylinder body and a contacting member carried by the piston, the switch being configured to be activated when said at least two electrical terminals are electrically brought into contact by the contacting member.
- the two electrical terminals are part an electrical circuit extending partly within the cylinder body. The circuit is interrupted between the two electrical terminals, which therefore prevents current from flowing. The switch is therefore inactive as long as the electrical circuit is open between the two electrical terminals, that is to say in the absence of contact between the contacting member and the two electrical terminals.
- the contacting member is disposed against the piston and includes a conductive surface.
- the contacting member has dimensions adapted to come into simultaneous contact with the two electrical terminals. Thus, upon contact between the two electrical terminals and the contacting member, the latter creates an electrically conductive bridge between the two electrical terminals and thus closes the electrical circuit. The switch is then activated.
- the cylinder body comprises a tubular portion having two ends, and two end walls disposed respectively at said two ends, said at least two electrical terminals being carried by one of the end walls.
- the piston provides longitudinal movement along the tubular portion of the cylinder body, the movement of the piston stopping substantially at each of the end walls of the cylinder body.
- One of the end walls of the cylinder body includes at least one opening to allow passage of the rod out of the cylinder body.
- the electrical terminals are arranged on the end wall comprising the opening, more precisely on an internal face of the end wall, ie the face oriented in the direction of the piston.
- the switch is activated when the piston, plus p ar t icu lièr em en t the contacting member, is pressed against the two electrical terminals.
- the switch is activated when the piston is at the end of the cylinder body and the rod reaches its maximum capacity to emerge from the cylinder body.
- This first embodiment of the cleaning device therefore makes it possible to determine the position of the piston when the latter is at one end of the cylinder body.
- the switch comprises at least one magnet carried by the piston and at least one magnetic sensor carried by the cylinder body, the switch being configured to be activated when said at least one magnet is opposite of said at least one magnetic sensor.
- the switch is activated during a magnetic interaction between the magnet on the one hand and the magnetic sensor on the other hand.
- the principle remains identical to the first embodiment, namely that the switch is activated when the piston is located near a particular zone of the cylinder body.
- the magnetic sensor is connected to an electrical circuit, kept open as long as the magnet is not near the electrical sensor.
- This second embodiment of the cleaning device therefore makes it possible to determine the position of the piston when the latter is either at one end of the cylinder body, or in a determined position situated between the two longitudinal ends of the cylinder body.
- the cylinder body comprises a tubular portion having two ends, and two end walls disposed respectively at said two ends, said at least one magnetic sensor being disposed in the tubular portion.
- the cylinder body has characteristics identical to what has been described above. The fact that the magnetic sensor is disposed in the tubular portion offers a greater influence as to the position of the piston when the switch is activated, unlike the first embodiment where the switch is activated when the piston is positioned in the middle. level with one end of the cylinder body, more particularly substantially against one of the end walls thereof.
- the switch is activated when the magnet is opposite the magnetic sensor.
- the switch is activated when a first transverse plane passing through the center of the magnet coincides with a second transverse plane passing through the center of the magnetic sensor.
- the passage of the magnet opposite the sensor magnetic causes the electrical circuit to close at the magnetic sensor.
- the switch can include several magnetic sensors configured to be arranged in several positions along the tubular portion.
- the second embodiment has the advantage of having freedom of positioning the magnetic sensor over substantially the entire length of the tubular portion. In other words, it is possible to determine the position of the piston relative to the cylinder body when the switch is activated depending on the choice of positioning of the magnetic sensor.
- Such freedom of positioning makes it possible to standardize the cleaning device according to the invention and to adapt it to the needs of each vehicle model, so as to have a stop of the piston specific for example to the positioning or to the dimensions of the optical system that the cleaning device is intended to clean. It is also conceivable to have a plurality of magnetic sensors along the tubular portion in the case where the cleaning device is configured to clean several optical systems.
- the invention also covers a system for cleaning at least one optical system of a vehicle, comprising at least one cleaning device as described above, a reservoir of cleaning fluid and a pump which transfers the cleaning fluid from the reservoir. to the cylinder chamber, the operation of the pump being placed under the control of the switch.
- the cleaning fluid reservoir and the cylinder chamber can for example be connected by a cleaning fluid pipe which passes in particular through one of the end walls of the cylinder body.
- the pump allows the circulation of the cleaning fluid from the reservoir to the cylinder chamber.
- the filling of the chamber with the cleaning fluid creates a pressure on the piston which causes the displacement of the latter towards the end wall opposite to the end wall of the cylinder body through which the cleaning fluid flows.
- the piston is linked to a spring which compresses following the movement of the latter.
- the spring has a resistance force less than the compressive force exerted by the cleaning fluid on the piston, hence the compression of said spring.
- the cleaning fluid also enters the circulation channel of the cylinder rod.
- the circulation channel has a sufficiently small diameter which tends to increase the pressure of the cleaning fluid at the level of the projection element.
- the cleaning fluid then flows into or along the cylinder rod through the circulation channel until it is projected onto the optical surface by the projection element.
- the piston subjected to the pressure of the cleaning fluid which fills the cylinder chamber, is moved until the switch is activated, by contact between the two electrical terminals and the contacting member according to the first embodiment. , or by magnetism between the magnet and the magnetic sensor according to the second embodiment, which interrupts the operation of the pump
- the operation of the pump is interrupted when the switch is activated.
- the pump is electrically connected to a power circuit comprising a generator, a first switch and a second switch.
- the switches can each have an open position and a closed position. Electric current only flows if both switches are in the closed position.
- the first switch is in the open position and the second switch is in the closed position.
- the first switch is capable of going into the closed position, for example following a manual control performed by a motorist driving the vehicle, or automatically if the optical system relating to the cleaning system is equipped with a detector indicating the presence of impurities. at an optical surface of the optical system in need of removal.
- the supply circuit When the first switch goes to the closed position, the supply circuit is completely closed and therefore causes the pump to operate, which circulates the cleaning fluid from the reservoir to the cylinder chamber.
- the cleaning fluid causes the piston to move while being projected against the optical system by the projection member of the rod.
- the piston moves until it activates the switch.
- the electrical circuit With the switch activated, the electrical circuit is then closed and powers an electric relay capable of acting on the pump supply circuit, more particularly on the second switch to switch it to the open position.
- the supply circuit is then cut off and the pump stops.
- the cleaning fluid no longer exerts pressure on the piston and is no longer thrown through the projection element.
- the spring no longer being subjected to the pressure of the piston, the latter then relaxes to return to its initial position, causing the displacement of the piston towards the end wall of the cylinder body and the concomitant displacement of the projection element.
- the latter no longer exerting any pressure, is then subjected to the pressure of the piston and is forced into the circulation line until it returns to the tank.
- the switch by activating it, therefore prevents cleaning fluid from being unnecessarily wasted by being thrown after cleaning the optical system.
- the activation of the switch is for example capable of causing the opening or closing of the electrical circuit and / or the switch, or any other action leading to the interruption of the pump.
- the invention also covers a method for cleaning an optical system of a vehicle implementing a cleaning system as described above, during which: the pump is put into operation so as to cause movement of the piston and a projection of the cleaning fluid onto the optical system, the switch is activated according to the position of the piston, and the operation of the pump is interrupted when the switch is activated.
- FIG. 1 is a schematic representation of a first embodiment of a cleaning device included within a cleaning system of an optical system, the cleaning system being inactive
- FIG. 1 is a schematic representation of the first embodiment, the cleaning system being active and the cleaning device projecting a cleaning fluid
- FIG. 3 is a schematic representation of the first embodiment, when activating a switch of the cleaning device,
- FIG. 4 is a schematic representation of the first embodiment, after activating the switch of the cleaning device,
- FIG. 5 is a schematic representation of a second embodiment of the cleaning device included in the cleaning system of the optical system, the cleaning system being active and the cleaning device projecting a cleaning fluid,
- FIG 6 is a schematic representation of the second embodiment, when activating the switch of the cleaning device.
- Figure 1 shows a cleaning system 1 suitable for cleaning an optical system 5.
- the optical system 5 can be of various kinds and is susceptible to clogging.
- the function of the cleaning system 1 is to clean the optical system 5 by spraying a cleaning fluid thereon.
- Such an optical system is for example a reversing radar, a reversing camera or an optical system of the LIDAR type.
- the cleaning system 1 comprises a cleaning device 2.
- the cleaning device 2 consists of a jack 3 which comprises at least one jack body 31 in the form of a tubular portion 37 closed with each of its ends by an end wall.
- the tubular portion 37 is in a substantially hollow cylindrical shape.
- the end walls close each end of the cylindrical shape of the tubular portion 37. As such, the end walls have dimensions adapted to the diameter of the tubular portion 37.
- the end walls have dimensions adapted to the diameter of the tubular portion 37.
- tubular portion 37 and the end walls of the cylinder body 31 together define an internal volume called chamber 32.
- the cylinder 3 also comprises a piston 33 and a rod 34.
- the piston 33 has a substantially cylindrical shape, the diameter of which is substantially less than the diameter of the tubular portion 37 of the cylinder body 31 so that the piston 33 moves in translation within the chamber 32.
- the piston 33 is located at one end of the rod 34.
- the rod 34 has a main dimension parallel to an axis of revolution of the tubular portion 37.
- the rod 34 is able to emerge from the body of cylinder 31 by passing through a first end wall 381. As such, the first end wall 381 has an opening formed for the passage of the rod 34.
- One end of the rod 34 emerging from the cylinder body 31 comprises an element projection 36.
- the projection element 36 may for example be in the form of a projection nozzle which projects the cleaning fluid onto the optical system 5.
- the projection element 36 is oriented relative to the rod 34 of so as to project the cleaning fluid in the direction of the optical system 5.
- a circulation channel 35 is provided within the rod 34 and extends from there. 'projection element 36 until it emerges into the chamber 32 by passing through the rod 34 and the piston 33.
- the cylinder 3 also comprises a spring 39.
- the spring 39 extends within the chamber 32, from the first end wall 381 to the piston 33.
- the spring 39 therefore exerts a mechanical force on the piston 33.
- the spring 39 is in its initial position, fully relaxed.
- the cleaning device 2 also comprises a switch, for example an electric switch.
- the switch is divided into two parts: a first part composed of two electrical terminals 41 and a second part composed of a contacting member 42.
- the electrical terminals 41 are both arranged on the first end wall 381, more p ar t icu lièr em en t on one face of the first end wall 381 oriented towards the chamber 32.
- the contacting member 42 for its part, is arranged on one face of the piston 33 geared towards the first end wall 381.
- the two electrical terminals 41 are electrically connected to an electrical circuit 16 which will be detailed below.
- the contacting member 42 covers the entire face of the piston 33 on which it is disposed.
- the contacting member 42 can for example be made of aluminum or any other conductive material.
- the switch is activated when the two electrical terminals 41 are in contact with the contacting member 42. In FIG. 1, the switch is inactive, the two electrical terminals 41 and the contacting member 42. being distant from each other.
- the cleaning system 1 also comprises a reservoir 11 of cleaning fluid.
- the reservoir 11 has a capacity for storing the cleaning fluid and may for example be accessible as part of a manual refill.
- the reservoir 11 is linked to a pipe 13 for cleaning fluid.
- Line 13 is equipped with a pump 12 and extends from reservoir 11 to cylinder 3, where it passes through a second end wall 382 of cylinder body 31 to open into chamber 32.
- the pump 12 is supplied by a supply circuit 15, the electric current of which is generated by an electric generator 14.
- the electric circuit 15 comprises a first switch 151 and a second switch 152.
- the first switch 151 can for example be actuated manually by a user of the vehicle, or else can be automatically actuated if the optical system 5 is provided with a device for detecting impurities. It is the passage of the first switch 151 in the closed position which allows an electric current to flow in the supply circuit 15 of the pump 12. In FIG. 1, the first switch 151 is in the open position. The cleaning system 1 is therefore inactive.
- the electric generator 14 also supplies the electric circuit 16 mentioned above.
- the electrical circuit 16 extends to each of the two electrical terminals 41 of the switch, passing through the structure of the tubular portion 37 and of the end walls 38 of the jack body 31. For an electric current to flow within the electrical circuit 16, this must be closed for example by a conductive bridge between each of the two electrical terminals 41 as will be described below.
- the electric circuit 16 also comprises an electric relay 17 able to act on the second switch 152 of the supply circuit 15 of the pump 12.
- the second switch 152 is here in the closed position.
- FIG. 2 represents the cleaning system 1 as described above.
- the cleaning system 1 is engaged, either manually or automatically.
- the first switch 151 therefore goes to the closed position and an electric current generated by the electric generator 14 can flow in the supply circuit 15 and supply the pump 12.
- the latter starts up and pumps the cleaning fluid from the reservoir 11 to the chamber 32 of the cylinder 3 via the pipe 13.
- the cleaning fluid accumulates within the chamber 32 and exerts pressure on the piston 33, the latter having a seal such that the cleaning fluid cannot s 'infiltrate between the piston 33 and the tubular portion 37.
- the pressure exerted by the cleaning fluid on the piston 33 forces its movement in the direction of the first end wall 381. Said pressure has a force greater than the force exerted by the spring 39 on the piston 33.
- the spring 39 is therefore compressed under the effect of the movement of the piston 33.
- the movement of the piston 33 also causes the emergence of the rod 34 out of the cylinder body 31.
- FIG. 3 is a schematic representation of the cleaning system 1 as shown above. From a chronological point of view, FIG. 3 represents the logical continuation of FIG. 2.
- the piston 33 still subjected to the pressure exerted by the cleaning fluid, continues its movement within the cylinder body 31 until it reaches near the first end wall 381.
- the spring not shown here, is compressed to its maximum.
- the contacting member 42 is carried by the piston 33. It is therefore the contacting member 42 which comes into contact with the electrical terminals 41, the assembly forming the switch 4. This is the situation in which the latter is activated. Indeed, the electrical circuit 16 is initially interrupted between the two electrical terminals 41 because the latter are not directly connected to each other. The contacting member 42 being electrically conductive, when the latter comes into contact with the two electrical terminals 41 simultaneously, the electrical current is then able to flow from one electrical terminal 41 to the other, which causes the '' activation of switch 4 and closing of the electrical circuit 16.
- the electric relay 17 When the electric circuit 16 is closed, the electric relay 17 is then supplied with electric current and modifies the position of the second switch 152. The latter then goes into the open position and therefore cuts off the passage of electric current within the supply circuit 15. This cut causes pump 12 to shut down.
- Figure 4 still shows the same cleaning system 1, after activating the switch.
- the projection element 36 no longer projects cleaning fluid
- the pump 12 is stopped, and the cleaning fluid present in the chamber 32 no longer exerts pressure on the piston 33.
- the spring 39 which has the highest force. The latter is therefore able to relax in order to return to its initial position as shown in FIG. 1.
- the spring 39 exerts pressure on the piston 33 and causes its movement in the direction opposite to what has been described above, that is to say in the direction of the second end wall 382.
- the cleaning fluid contained in the chamber 32 is subjected to the pressure exerted by the movement of the piston 33 and is then forced into the pipe 13.
- the pipe 13 has a diameter greater than the diameter of the circulation channel 35.
- the movement of the piston 33 also causes the deactivation of the switch, the contacting member 42 being carried by the piston 33.
- the electrical circuit 16 is therefore again interrupted between the two electrical terminals 41, which causes the passage of the second switch 152 in the closed position.
- the first switch 151 having reopened in the meantime, closing the second switch 152 does not reactivate the pump 12.
- the movement of the piston 33 continues until the spring 39 has returned to its original shape.
- FIG. 5 represents a second embodiment of the cleaning device 2 within the cleaning system 1, after activation of the pump 12. The only difference between the two embodiments lies in the nature and in the positioning of the switch. . Reference will therefore be made to the description of FIG. 1 for the general presentation of the control system. cleaning 1 and the description of Figure 2 for the flow of the stage cleaning process as shown in Figure 5.
- the switch is divided into two parts, with a magnet 43 and a magnetic sensor 44.
- the magnet 43 is carried by the piston 33. More particularly, the magnet 43 is arranged on a portion of the piston 33 located in contact or substantially in contact with the tubular portion 37 of the cylinder body 31. The magnet 43 is traversed through it. by a first transverse plane 101 passing through the center of the magnet
- transverse is meant a direction perpendicular to the rod 34.
- the magnet 43 is connected to the piston at an outer peripheral portion of the piston 33.
- the magnetic sensor 44 is disposed around or within the tubular portion 37, as close as possible to the chamber 32. Like the electrical terminals of the first embodiment of the cleaning device 2, the magnetic sensor 44 is also connected to the electric circuit 16. The magnetic sensor is linked to the two ends of the electric circuit 16 and maintains the latter open. The magnetic sensor 44 is crossed by a second transverse plane 102 passing through the center of the magnetic sensor 44. By transverse is meant a direction perpendicular to the rod 34.
- FIG. 6 is a schematic representation of the second embodiment of the cleaning device 2 within the cleaning system 1 as shown above. From a chronological point of view, FIG. 6 represents a step which immediately follows that illustrated in FIG. 5. Thus, the piston 33 continues its movement in the direction of the first end wall 381. The movement of the piston 33 logically causes a movement of the magnet 43 carried by the latter.
- switch 4 When magnet 43 and magnetic sensor 44 are facing each other, switch 4 activates.
- the magnetic capacity of the magnet 43 causes the attraction of an electrically conductive blade disposed within the magnetic sensor 44 which enables the electrical circuit 16 to be closed.
- an electric current then flows in the electric circuit 16, thus supplying the electric relay 17 which opens the second switch 152 in order to interrupt the supply circuit 15 and to stop the operation of the device. pump 12.
- the activation of the switch 4 causes the stopping of the pump 12, and therefore the stopping of the movement of the piston 33 as well as the projection of cleaning fluid through the projection element 36.
- the piston 33 is then moved in the opposite direction, towards the second end wall 382, by the force exerted by the spring 39 on the piston 33, as depicted in Figure 4.
- the magnetic sensor 44 it is possible to arrange the magnetic sensor 44 at a plurality of positions along the tubular portion 37 of the cylinder body 31.
- the magnetic sensor 44 it is possible to determine at which level of the chamber 32 the movement of the piston 33 is interrupted. Accordingly, it is therefore also possible to determine at what proportion the rod 34 emerges from the cylinder body 31.
- the second embodiment of the cleaning device 2 is therefore customizable, whether in first or aftermarket, which facilitates adaptation of the latter, for example depending on the vehicle model, the size of the optical system 5 or the position of the optical system 5 relative to the cleaning system 1.
- the invention achieves the object which it had set itself, and makes it possible to propose a cleaning device for an optical system comprising a switch ensuring the stopping of the projection of a cleaning fluid so as to save it.
- Variants not described here could be implemented without departing from the context of the invention, provided that, according to the invention, they include a cleaning device according to the invention.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Water Supply & Treatment (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Cleaning In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1911041A FR3101590B1 (fr) | 2019-10-04 | 2019-10-04 | Dispositif de nettoyage d’un système optique |
| PCT/EP2020/074405 WO2021063618A1 (fr) | 2019-10-04 | 2020-09-02 | Dispositif de nettoyage d'un système optique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4037940A1 true EP4037940A1 (fr) | 2022-08-10 |
Family
ID=69104732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20767512.5A Withdrawn EP4037940A1 (fr) | 2019-10-04 | 2020-09-02 | Dispositif de nettoyage d'un système optique |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20230038979A1 (fr) |
| EP (1) | EP4037940A1 (fr) |
| JP (1) | JP2022550590A (fr) |
| CN (1) | CN114728631A (fr) |
| FR (1) | FR3101590B1 (fr) |
| WO (1) | WO2021063618A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119869794B (zh) * | 2023-10-25 | 2025-10-31 | 一汽-大众汽车有限公司 | 一种单体计量泵喷涂控制系统 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2026851B (en) * | 1978-08-09 | 1982-07-21 | Smiths Industries Ltd | Vehicle haedlamp cleaning system |
| FR2523909A1 (fr) * | 1982-03-26 | 1983-09-30 | Renault | Dispositif de lavage pour glace de vehicule automobile |
| JPH07196017A (ja) * | 1993-12-29 | 1995-08-01 | Suzuki Motor Corp | 車両用ヘッドランプクリーナ制御装置 |
| JP2005035433A (ja) * | 2003-07-16 | 2005-02-10 | Ichikoh Ind Ltd | 車両用灯具のクリーナ装置 |
| JP5453589B2 (ja) * | 2009-03-18 | 2014-03-26 | 美樹 杉野 | シリンダ装置 |
| FR2964888B1 (fr) * | 2010-09-20 | 2016-01-08 | Peugeot Citroen Automobiles Sa | Dispositif comportant un clapet anti-retour |
| JP2013256150A (ja) * | 2012-06-11 | 2013-12-26 | Faltec Co Ltd | フロントグリル構造 |
| JP6417757B2 (ja) * | 2013-09-19 | 2018-11-07 | 株式会社デンソー | 車載光学センサ洗浄装置 |
| JP6828350B2 (ja) * | 2016-09-30 | 2021-02-10 | 株式会社デンソー | 電動エアポンプ及び車載光学センサ洗浄装置 |
| JP6847256B2 (ja) * | 2017-11-14 | 2021-03-24 | 株式会社ミツバ | 洗浄装置および検出装置 |
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2019
- 2019-10-04 FR FR1911041A patent/FR3101590B1/fr not_active Expired - Fee Related
-
2020
- 2020-09-02 WO PCT/EP2020/074405 patent/WO2021063618A1/fr not_active Ceased
- 2020-09-02 EP EP20767512.5A patent/EP4037940A1/fr not_active Withdrawn
- 2020-09-02 US US17/764,356 patent/US20230038979A1/en not_active Abandoned
- 2020-09-02 JP JP2022520616A patent/JP2022550590A/ja not_active Ceased
- 2020-09-02 CN CN202080080869.5A patent/CN114728631A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2022550590A (ja) | 2022-12-02 |
| CN114728631A (zh) | 2022-07-08 |
| FR3101590B1 (fr) | 2023-01-20 |
| WO2021063618A1 (fr) | 2021-04-08 |
| FR3101590A1 (fr) | 2021-04-09 |
| US20230038979A1 (en) | 2023-02-09 |
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